:root {
  --bg: #f6f5fb;
  --surface: #ffffff;
  --text: #1c1830;
  --muted: #6b6784;
  --border: #e3e0ef;
  --primary: #5b4bd6;
  --primary-text: #ffffff;
  --danger-bg: #fdecec;
  --danger-text: #a61b1b;
  --radius: 12px;
  --sidebar-w: 220px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

[data-theme="dark"] {
  --bg: #13111c;
  --surface: #1d1a2a;
  --text: #ece9f7;
  --muted: #9c97b8;
  --border: #2e2a40;
  --primary: #8b7cf6;
  --danger-bg: #3a1b1f;
  --danger-text: #ffb4b4;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.45; }
a { color: var(--primary); }

.sidebar {
  position: fixed; inset: 0 auto 0 0; width: var(--sidebar-w);
  background: var(--surface); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; padding: 16px 12px;
}
.sidebar__brand { margin-bottom: 16px; }
.brand { display: flex; gap: 8px; align-items: center; font-weight: 700; text-decoration: none; color: var(--text); }
.side-nav { flex: 1; }
.side-group__title { font-size: 12px; text-transform: uppercase; color: var(--muted); margin: 12px 8px 4px; }
.side-link { display: block; padding: 8px; border-radius: 8px; color: var(--text); text-decoration: none; }
.side-link:hover { background: var(--bg); }
.side-link.is-active { background: var(--primary); color: var(--primary-text); }
.sidebar__footer { display: flex; gap: 8px; align-items: center; }
.theme-toggle, .logout-btn, .menu-btn {
  background: transparent; border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 6px 10px; cursor: pointer;
}

.shell__main { min-height: 100vh; }
.with-sidebar .shell__main { margin-left: var(--sidebar-w); }
main { padding: 24px; max-width: 1200px; }
.mobile-bar { display: none; }

.page-title { margin: 0 0 16px; font-size: 24px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.kpi__label { color: var(--muted); font-size: 14px; }
.kpi__value { font-size: 32px; font-weight: 700; margin-top: 4px; }
.kpi__hint { color: var(--muted); font-size: 12px; margin-top: 4px; }

.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: 100%; max-width: 360px; display: flex; flex-direction: column; gap: 10px; }
.login-card h1 { font-size: 20px; margin: 0 0 8px; }
.login-card input { padding: 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); }
.btn-primary {
  display: inline-block; background: var(--primary); color: var(--primary-text); border: 0;
  border-radius: 8px; padding: 10px 16px; cursor: pointer; text-decoration: none; font-weight: 600;
}
.alert-danger { background: var(--danger-bg); color: var(--danger-text); padding: 8px 12px; border-radius: 8px; }
.muted { color: var(--muted); }

.public-wrap { max-width: 640px; margin: 0 auto; padding: 48px 20px; }
.public-wrap h1 { font-size: 36px; }

@media (max-width: 800px) {
  .with-sidebar .shell__main { margin-left: 0; }
  .sidebar { transform: translateX(-100%); transition: transform .2s; z-index: 10; }
  .sidebar.is-open { transform: none; }
  .mobile-bar { display: flex; gap: 12px; align-items: center; padding: 12px 16px; border-bottom: 1px solid var(--border); background: var(--surface); }
}